The ability of a muscle to generate tension immediately after stimulation is dependent on: a. myosin interaction with the M line b. overlap of myosin and actin c. actin attachments to the Z line d. none of the above

Q: Which is a false statement about skeletal muscle structure?a. A myofibril is composed of multiple…

A: Skeletal or Striated muscle- These are present on muscles that are associated with the skeleton.

Q: Hill's equation gives a relation between muscle contraction rates νν and muscle tension TT…

A: We have to rewrite the equation in a form to show that T is dependent on v including T0, alpha and…

Q: The higher the frequency of action potentials, the higher amount of force produced in a muscle.…

A: An action potential is a change in the membrane potential of the neuron. This is caused due to…

Q: Why might stretching a cramping muscle INCREASE the cramping, as well as why would contracting the…

A: Muscles are the tissues that govern physiological processes by their contraction and relaxation. The…

Q: Through which ATP-generating mechanism can long-lasting muscle contractions be sustained? a.…

A: Introduction :- Muscle contractions are defined by changes in the length of the muscle during…

Q: Which of the following does NOT occur in or immediately prior to a muscle contraction? action…

A: NOTE- As per our honor code, we are authorized to answer only three multiple questions at a moment.…

Q: ___ fibers can temporarily store ___ in myoglobin. a. Fast-twitch . . . ATP b. Slow-twitch . . .…

A: Answer: Introduction: Skeletal muscles formed by distinct muscle fibers. And like muscles…

Q: The force of muscle contraction may be altered by increasing/decreasing the stimulus interval…

A: Muscle Contraction: It is the activation of tension-generating sites within muscle cells.

Q: Summation in a single muscle fibre means that Select one: a. the fibre increases the frequency of…

A: Introduction Muscle contraction:- It is the activation of tension-generating sites within muscle…

Q: Which of the following is responsible for muscle movement? A. Antagonists B. Isometric Contraction…

A: Q.1  Answer :-  Antagonist and agonist muscles often occur in pairs, called antagonistic pairs.…

Q: What causes a muscle cell to contract? A) ATP forms a bridge binding actin to myosin. B) Calcium…

A: The muscular system is made up of muscle tissue and is responsible for functions such as maintenance…

Q: A skeletal muscle motor unit   A.Is the number of muscle cells innervated by one motor neuron. B.Is…

A: The skeletal system consists of bones and muscle fibres. These muscle fibres help in contracting and…

Q: The decrease in active force that occurs at lengths longer than the optimal length is caused by: O…

A: According to the question, the decrease in active force that occurs at lengths longer than the…

Q: Which of the following does NOT contribute to muscle fatigue? A. K+ accumulation B. ADP and…

A: Introduction Muscle fatigue is a condition in which muscles loses the ability to perform overtime.…

Q: Which of the following sentences is NOT correct? A. Cancellous bone (trabecular) is spongy bone B.…

A: Among the given statements, the final statement seems incomplete. So I am providing solution…

Q: Describe the sequence of events that occurs when an action potential arrives at a muscle fiber’s…

A: When the action potential arrives at the end of motor neurons, it excites the skeletal muscles to…

Q: Which of the following is arranged in order from smallest tolargest?a. Motor unit < sarcomere…

A: When a nerve impulse travel to the muscle contraction that is an action potential causes the muscles…

Q: The following are the basic steps of a muscle contraction:               I.  Neurotransmitters bind…

A: Muscle tissue is responsible for movement. There are found three types of muscles: Skeletal,…

Q: The series-elastic component of muscle contraction is responsible for a.increased muscle shortening…

A: Muscle is a delicate tissue found in many creatures, and is one of the four fundamental creature…

Q: During which phase of a twitch in a muscle fiber istension the greatest?a. resting phaseb.…

A: The phenomenon of lifting or moving an object (load) involves the sarcomeres present in the muscle…

Q: list that has the order from the smallest to the larges a) Sarcomere , Myofibrilactin , myosin b)…

A: Correct option: b) Actin, -sarcomere, -Myofibril, -Muscle Fibre

Q: explain muscle contraction in several distinct steps starting the release of acetylcholine junction

A: Muscle contraction occurs when the tension generating regions are activated within the muscle…

Q: Graded muscle contractions ________. depend on activation of more and more motor units depend…

A: Muscle cells are made up of two key protein filaments called actin and myosin. These proteins are…

Q: Repetitive stimulation of a skeletal muscle fiber will cause an increase in contractile strength…

A: Skeletal muscles are voluntary muscles. Skeletal muscles are striated because of presence of…

Q: Which of these events occurs during the team phase, just when a muscle has been stimulated? a) Ca2…

A: Muscle stimulation The muscle contraction is stimulated by the action potential that traveled along…

Q: Which of the following statements are true? Multiple Choice Muscles work in antagonistic pairs…

A: Tissue is the next level organization of the cells. There are 4 different types of tissue are…

Q: Contraction of muscle fibers in skeletal muscle is initiated by the uptake of calcium by the…

A: Movement refers to any change in body position. It is a fundamental characteristic of living beings.…

Q: Describe the Neural excitation of the muscle and Describe how a signal arriving at the axon terminal…

A: Neurons are the basic unit of the nervous system that carry electrical stimuli throughout the body.…

Q: The rising phase of a muscle twitch represents ________. the time of relaxation of the muscle…

A: Muscle twitches are involuntary contractions of the muscle fibers. Nerves control these muscle…

Q: Graph A in this diagram represents A) summation and tetanus of a smooth muscle fibre. C) a simple…

A: Skeletal muscles Skeletal muscles are attached to the body part which is involved in movement like…

Q: During which step of a muscle contraction cycle is ATP needed? when myosin head does a power stroke…

A: Muscle contraction occurs when tension is generated in the muscle fibers. It occurs due to the…

Q: Which of the following skeletal muscle fiber types would have the fastest contractions and the…

A: Muscles are composed of a group of muscle fibers. Fibers of skeletal muscles are classified into…

Q: which of the following statement is true?  a. Fast fibers have difficulty fatiguing  b. Fast…

A: Tissue is the next level organization of the cells. There are 4 different types of tissue are…

Q: In a resting (non-contracting) muscle, what is the position of myosin? It is attached to the…

A: Skeletal system that present in our body is responsible for our movement and locomotion. That's why…

Q: Which of the following statements is true?a. Fast fibers have a small diameter.b. Fast fibers…

A: The skeletal muscle fibers are of 2 types: slow-twitch muscle fibers and fast-twitch muscle fibers.…

Q: The transverse tubular system: A)speeds the transmission of an action potential down the length of a…

A: *Tansverse tubular system is a network of interconnecting rings that surrounds a myofibril. *It…

Q: The muscle relaxes if no new nerve signal arrives. However the neurotransmitter from the previous…

A: The force exerted by the muscle is less than its maximum in a concentric contraction, and the muscle…

Q: The muscle cell membrane of the neuromuscular junction is called the A. Synaptic cleft B. Motor end…

A: Introduction The neuromuscular junction (NMJ) is a highly specialised synapse that connects a motor…

Q: Which of the following sentences is NOT correct? A. White fibers make up fast-twitch muscle B.…

A: Living organisms are highly organized as they contain specialized, coordinated parts. All living…

Q: In an isometric contraction, the muscle develops tension but does not: a.  Expend energy. b.…

A:

Q: All the following are important for smooth muscle contraction EXCEPT? Select one: a. Actin b. Myosin…

A: The mechanism of muscle contraction is based on muscle proteins that slide past each other to…

Q: A decline in a skeletal muscle's ability to maintain a constant level of force or tension after…

A: Skeletal muscles Skeletal muscles are the muscles that cover the bone of the body.

Q: Which of the following causes ( the state of ) rigor in skeletal muscle ? a) lack of atp b)…

A: Skeletal muscles enable humans to move and perform daily activities. They play an essential role in…

Q: In sustained, moderate exercise, skeletal muscle is predominantly using ______________ as its energy…

A: Introduction  Locomotion is the key to animals as they are motile and can move from one place to…

Q: Which of the following does NOT describe treppe? It is also referred to as the "staircase" effect.…

A: The muscular system is the set of muscles that are present in the body adhered to the skeletal…

Q: List and describe all of the major events that occur during a muscle contraction starting with the…

A: Contraction of muscles is the foundation of all skeletal movements as the force required for the…

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.